Rock-drilling device



April 26, 192,7.

' E. C5.v GARTIN Rocx nRILLxNG ENIGEv Filed Jan\'.14. 1922 Patented Apr.26, 1927.

UNITED srarss larsNr Emsa, e. einem; sassarese; marsans, Assreao TQ @wwwMA- CHINERY COMPANY, A CORPORATION OE` MASSACHUSETTS.

' i .Rock-narrante DEVICE.

Apen-carica' fired january 14, 1922?. serial no. 529,165.

My invention relates tdjmeans for .supplying liquid' and gaseous fluidstov points' of use, and more particularly to improved means forsupplying liquid and gaseous fluids to rock drilling devices. l

An object' of my invention is to provlde improved liquid and gaseousfluid conducting means. Another object of my invention is to provideimproved liquid and gaseous fluid conducting means fory supplying motivefluid and cleansing fluid to rock drilling devices. A further object ofmy invention is to provide improved means for supplying compressed airand water to rock drilling devices whereby the latter may be moreconveniently handled than is now the ase.

@ther objects and advantages of my inven-A tion will hereinafter morefully appear.

In the accompanying drawings I have shown for purposes of illustrationone form which my invention may assume in practice.

In these drawings,-

Fig. 1 is a view mainly in elevation, but

withv parts broken away of my improvedv liquid and gaseous fluidconducting means shown applied to a rock drilling mechanism.

Fig. 2 is a view on an enlarged scale of my improved conducting means,the parts being shown in section to disclose more clearly the structure.

It is a well known classes'of rock drilling it is highly desirableJ tosupply liquid to the hole being drilled to l allay the dust and this iscommonly done amount of care.

by supplying the liquid through the hollow drill steels which areemployed for drilling the holes. Y In prior devices, however, it hasbeen necessary to lead separate motive fluid and cleansing liquid supplyconnections to the rock drilling device and the two pipes necessitatedthereby have greatly interfered with the use of the machines during rockdrilling, the pipes tending to tangle and trip the drill runners andrequiring an inordinate For the purpose of overcoming these difhcultiesI have devised an improved mechanismthe illustrative form of which Ishall now describe.

Referring to Figure l, it will be noted that I have vshown a drillingmechanism, generally indicated 1, of the well known stoper type, whichdrilling mechanism comprises a pneumatic motor 2 and pneumatic feedingmeans 3 therefor. In the use of this fact that for certain device motivefluid is Vsuppliedto the motor 2' under control of a valve mechanismgenerally indicated by 5- and liquid cleansing fluid supplied through aconnection 6- is lihewise controlled by this valve mechanism and'vconducted in any one of a number of wellv known methods to the interiorof a hollen drill steel 7. A portion ofthe mo'tiife fluid may also besupplied tol the steelf' along with the liquid 'in any lusual manner..VThe type oftool that I'hav'e shown is of the hand rotation typeY vhavinga lever or handle 81 which is grasped bythe operator and oscillatedinorder to insure the boring of a true hole. Now it will be `understoodthat if separate air and water connections were employed, thereV wouldbe two pipeshanging down near the base of the feed mechanism andconstantly tending to trip the drill runner. I have accordingly providedmeans, whose illustrative form I shall now describe,

for reducing the danger of entanglement and for facilitating the use ofthe drilling mechanism as a whole.

Connected to the end of the valve mechanism 5 is a curved connectormember 10, while a second connector llrleads to the liquid cleansingfluid supply connection on the tool.Vv The connectors 1() and 11 lead toa manifold member 12 which is divided herein into coaxially disposedpassages 13 and 14,

althoughit will be obvious that the passages need not be coaxialprovided one lies-within the other. The connector 11, which is theliquid supplying connection, communicates by a suitably packed joint 15with the passage 13 and the connector 10 communicates with the-passage14 It will be noted that a hose 16 through which air is supplied isconnected as at 16 to the exterior of the member 12 andv communicateswith the passage 14 whileywithin the hose 16 second hose 17 isarrangedand communicates with the passage 13, both hoses being held againstdetachment in any suitable manner as, for example, by the collars andwindings shown.` Aty the opposite ends of the` hoses a somewhat similarmanifold member is provided, this manifold member having a passage 14formed 'therein corresponding to the passage 14 and communicat-A ingfrom an air supply passagemay be attached.- fA passage forming member20l is vsecured Withintlie passage 14V and has therey finl av pessage13-vrThe hoses 16 and 17` are similarly securedr to the passage Jorinngineens ende connection 21 for a liquid sup ply pipe 22 Will he noted tocommunicate with the passage 1g,/ jV I Y Tlieinode of `Operation of thisVdevice Will ot air under pressure and cleansing yliquid .fuill' heconnected to the opposite endsol the pipes 16 and l'loy ineens of theconnect- .tions 18 und-2l. The cleansing liquid vfiil t-hen. beconducted by the inner pipe and .the ii'iotive fluid by the pipesurrounding theinner-pipe as may he requisite. :Anyleakagee-Willnormally he -froni the air intoit-he inner pipe and so), no danger offlooding the inotor Will-arise. As there will he but e 4vsinglevflexiblemember' for which the Work man must look out, leading from a'point etVsoine"distance.from the 'drilling device to the drilling device,itivill he apparent that External fluid Ysupplyfcon'nreetions.for i vsource of supply respectively.-

the use of the ldrill will bergreatly faciliteted.

While I fheve inv this application specilically described one form whichmy invention may assume in practice, it Will heunderstood y i thatthis'forinfofy the saine lfis" shown for 1 "purposes of illustrationand-'that ythe invention may he modifiedand embodied in vzL- rious'other" orins Without i departing rfrom its'spirit or the scope oit' theappended claini;` What 'I claim esn'eivzinddesire t'osecureV by Letters`VPatent is :j

rock drillingV v`i'nechanisin v.having internal l'liiid conductingmeans, comprisingoziiiel gaseous and Cleansing liquid ypressers"supetichend of 'said' coaxial supply jlines; and branchl connections' lcommunicating withY each of said manifold vrneinloersrend with saidinternal fluid conductingineans 4and the In testimony WhereotI I aiiixmy*signiture.`

ELunR e. erlirrin 'ply lines, manifold :ineinhersf eriengedatCertificate of Correction.

Patent No. 1,626,277. Granted Api-i1 26, 1927, to

ELMER G. GARTIN.

It is hereby certied that error appearsvn the printed specification ofthe abovenumbered patent requiring correction as follows: Page 2, line4l, in the cla-im, for the Word pressers read pressure; f1-nd that thesaid Letters Patent should be read with this Correction thereiii thatthe same may conform to the record of the case in the Patent Office. Y

Signed and sealed this 7th day of Jima, A. D. 1927.

[L 5.] M, J. MOORE,

Acting Commissioner of Patents,

